(a) A person shall exhibit proper proof of his or her age upon demand of a person licensed under this chapter, an employee of a licensee, or a law enforcement officer. If the person fails to provide proper proof of age, the licensee shall be entitled to refuse to sell tobacco products, tobacco substitutes, or tobacco paraphernalia to the person. The sale or furnishing of tobacco products, tobacco substitutes, or tobacco paraphernalia to a person exhibiting proper proof of age shall be prima facie evidence of a licensee’s compliance with section 1007 of this title.
(b) As used in this section, “proper proof of age” means a valid authorized form of identification as defined in section 589 of this title.